EXTRA CREDIT Variables and Expressions & Evaluating Expressions

A variable is . . .

• an awesome number

• a number represented by a letter

• an infinite number

• a number multiplied by another number

Tags

CCSS.6.EE.A.2B

Which one indicates multiplication?

• 5x

• 5+x

• 5/x

Tags

CCSS.3.OA.A.1

CCSS.3.OA.B.5

Which one indicates multiplication?

• -6-x

• x-6

• -6(x)

Tags

CCSS.7.NS.A.2

CCSS.7.NS.A.3

Which one indicates multiplication?

• 17+x

• 17*x

• -17-x

Tags

CCSS.3.OA.A.1

CCSS.3.OA.B.5

Use the order of operations to evaluate the expression.

15 − 3 × 3

• 6

• 36

• 9

• 15

Arrange the letters for the correct order of operation below:

• P

• A S

• E

• M

• D

• 14

• 400

• 17

• 22

• 9

• 7

• 11

• 18

• 8

• 6

• 12

• 24

• 20

• 30

• 2

• 8